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Official data from INPI

TRANSFORMADOR HIBRIDO MAGNETIZADO DE CORRENTE CONTINUA

ConcedidaInvention Patent

Application data

Number

PI8207876

Type

Invention Patent

Filing

04/24/1981

Publication

08/30/1983

Progress at the INPI

  1. Filing04/24/81
  2. Publication08/30/83
  3. Examination10/23/84
  4. Allowance01/07/86
  5. Grant06/24/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ERICSSON TELEFON AB L M [SE]

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Inventors

J. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

05/06/1986

RPI 811

Deferimento

#9.1

01/07/1986

RPI 794

Exigência - art. 36 da LPI

#6.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

10/23/1984

RPI 731

Notificação de entrada na fase nacional - PCT

#1.3

08/30/1983

RPI 671

Carta-patente expirada

#21.1

Patente extinta em 06/04/97

08/19/2008

RPI 1963

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